SYMPOSIA PAPER Published: 01 January 2007
STP45510S

Detection of Crack Initiation by Observations of Free Surface Condition

Source

A simple method to detect crack initiation is presented. By polishing the surface of carbon steel structure properly and using the Lüders bands and orange peel as indicators for damage, it is possible to predict crack initiation with the naked eye. The initiation of the Lüders bands is the yellow light of the crack initiation, for instance, in the traffic signal, and orange peel is the red light. The relationship between the observed surface condition and the cyclic stress-strain characteristics is discussed.

Author Information

Ichinose, Kensuke
Tokyo Denki University, Tokyo, Japan
Yoshida, Sanichiro
Southeastern Louisiana University, Hammond
Gomi, Kenji
Tokyo Denki University, Tokyo, Japan
Taniuchi, Kiyoshi
Meiji University, Sagamihara-shi, Japan
Fukuda, Katsumi
Tokyo National College of Technology, Tokyo, Japan
Ishii, Hideyuki
Tokyo Denki University, Tokyo, Japan
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Details
Developed by Committee: E08
Pages: 148–157
DOI: 10.1520/STP45510S
ISBN-EB: 978-0-8031-6247-1
ISBN-13: 978-0-8031-3406-5